Loading [MathJax]/jax/output/HTML-CSS/jax.js
Chemistry questions and answers

Chemistry Questions and Answers

Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.

501.

Which of the following is the best starting material for the preparation of oxygen? Heating of trioxonitrate (v) with

A.

Pb

B.

Zn

C.

Ca

D.

Na

Correct answer is A

No explanation has been provided for this answer.

502.

Burning magnesium ribbon in air removes which of the following
(i) oxygen (ii) nitrogen (iii) argon and (iv) carbon(iv)oxide?

A.

i and iv only

B.

i, ii, iii and iv only

C.

i only

D.

i and ii only

Correct answer is C

No explanation has been provided for this answer.

503.

A synthetic rubber is not obtained from the polymerization of?

A.

neoprene

B.

isoprene

C.

butandiene

D.

hexane

Correct answer is D

No explanation has been provided for this answer.

504.

The IUPAC name of the compound CF3CHBrCl is

A.

2-chloro-2-bromo-1,1,1-trifluoroethane

B.

2-bromo-2-chloro-1,1,1-trifluoroethane

C.

1-bromo-1-chloro-2,2,2-trifluoroethane

D.

1,1,1-trifluoro-2-bromo-2-chloroethane

Correct answer is B

No explanation has been provided for this answer.

505.

Hydrocarbons which will react with Tollen's reagent conform to the general formula

A.

CnH2n

B.

CnH2n+2

C.

CnH2n2

D.

CnH2n+1OH

Correct answer is D

No explanation has been provided for this answer.